The No. 1 turbo pressure sensor is installed to the intake manifold assembly and is comprised of the turbo pressure sensor and thermistor type intake air temperature sensor which detects the intake air temperature.
The No. 2 turbo pressure sensor is installed to the intercooler assembly and detects the turbo pressure.
The turbo pressure sensor consists of a semiconductor which utilizes the characteristics of a silicon chip that changes its electrical resistance when pressure is applied to it. The sensor converts the intake air pressure into an electrical signal, and sends it to the ECM in an amplified form.